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2G126 | Measuring of electric power, power factor, electric energy; test, calibration | |
G01R11/00 -11/66@Z;21/00-22/10;35/00-35/06 |
2G126 | Measuring of electric power, power factor, electric energy; test, calibration | |
G01R11/00 -11/66@Z;21/00-22/10;35/00-35/06 |